As 61850.7.2-2005 Communication Networks and Systems in Substations Basic Communication Structure for Substat

7/31/2019 As 61850.7.2-2005 Communication Networks and Systems in Substations Basic Communication Structure for Substat

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AS 61850.7.22005IEC/TR 61850-7-2, Ed.1 (2003)

Australian Standard

Communication networks and systemsin substationsPart 7.2: Basic communication structurefor substation and feeder equipmentAbstract communication serviceinterface (ACSI)

A S 6 1 8 5 0 .7 .2 2 0 0 5


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This Australian Standard was prepared by Committee EL-050, Power SystemControl and Communication. It was approved on behalf of the Council of StandardsAustralia on 15 August 2005.This Standard was published on 20 September 2005.

The following are represented on Committee EL-050:

Australian Electrical and Electronic Manufacturers AssociationCommerce QueenslandEnergy Networks AssociationEngineers Australia

Keeping Standards up-to-dateStandards are living documents which reflect progress in science, technology andsystems. To maintain their currency, all Standards are periodically reviewed, andnew editions are published. Between editions, amendments may be issued.Standards may also be withdrawn. It is important that readers assure themselvesthey are using a current Standard, which should include any amendments whichmay have been published since the Standard was purchased.

Detailed information about Standards can be found by visiting the Standards WebShop at www.standards.com.au and looking up the relevant Standard in the on-linecatalogue.Alternatively, the printed Catalogue provides information current at 1 January each

yea r, and the month ly magazine, The Global Standard , has a full listing of revisionsand amendments published each month.Australian Standards TM and other products and services developed by StandardsAustralia are published and distributed under contract by SAI Global, whichoperates the Standards Web Shop.We also welcome suggestions for improvement in our Standards, and especiallyencourage readers to notify us immediately of any apparent inaccuracies orambiguities. Contact us via email at [email protected], or write to the Chief Executive, Standards Australia, GPO Box 476, Sydney, NSW 2001.

This Standard was issued in draft form for comment as DR 05208.


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AS 61850.7.2 2005

Australian Standard

Communication networks and systemsin substationsPart 7.2: Basic communication structurefor substation and feeder equipment Abstract communication serviceinterface (ACSI)

First published as AS 61850.7.22005.

COPYRIGHT

Standards Australia

All rights are reserved . No part of this work may be rep roduced o r copied in any form o r byany means, electronic or mechanical, including photocopying, without the writtenpermission of the publisher.

Published by Standards Australia GPO Box 476, Sydney, NSW 2001, Australia

ISBN 0 7337 6855 5


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ii

PREFACE

This Standard was prepared by the Standards Australia Committee EL-050, Power System

Control and Communication .The objective of this Standard is to provide users and manufacturers of substation automationequipment with a definition of the abstract communication service interface (ACSI) for use inthe utility substation domain that require real-time cooperation of intelligent electronic devices.

This Standard is identical with, and has been reproduced from IEC/TR 61850-7-2, Ed.1 (2003),Communication networks and systems in substations Part 7.2: Basic communication structure

for substation and feeder equipmentAbstract communication service interface (ACSI) .

This Standard is Part of Communication networks and systems in substations . The seriesconsists of the following:

Part 1: Introduction and overview

Part 2: Glossary

Part 3: General requirements

Part 4: System and project management

Part 5: Communication requirements for functions and device models

Part 6: Configuration description language for communication in electrical substationsrelated to IEDs

Part 7.1: Basic communication structure for substation and feeder equipmentPrinciplesand models

Part 7.2: Basic communication structure for substation and feeder equipmentAbstractcommunication service interface (ACSI) (this Standard)

Part 7.3: Basic communication structure for substation and feeder equipmentCommondata classes

Part 7.4: Basic communication structure for substation and feeder equipmentCompatiblelogical node classes and data classes

Part 8.1: Specific communication service mapping (SCSM)Mappings to MMS(ISO/IEC 9506-1 and ISO/IEC 9506-2) and to ISO/IEC 8802-3

Part 9.1: Specific communication service mapping (SCSM)Sampled values over serial

unidirectional multidrop point to point linkPart 9.2: Specific communication service mapping (SCSM)Sampled values over

ISO/IEC 8802-3

As this Standard is reproduced from an International Standard, the following applies:

(a) Its number does not appear on each page of text and its identity is shown only on thecover and title page.

(b) In the source text IEC/TR 61850-7-2 should read AS 61850.7.2.

(c) A full point should be substituted for a comma when referring to a decimal marker.

(d) Any French text on figures should be ignored.

The terms normative and informative are used to define the application of the annex towhich they apply. A normative annex is an integral part of a standard, whereas an informativeannex is only for information and guidance.


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ii i

CONTENTS

Page

1 Scope .............................................................................................................................. 1

2 Normative references ....................................................................................................... 1

3 Terms and definitions ....................................................................................................... 2

4 Abbreviated terms ..... .. ... ... .. ... ... .. ... ... .. ... ... .. ... .. ... ... .. ... ... .. ... ... .. ... ... .. ... ... .. ... ... .. ... .. ... ... .. ... 3

5 ACSI overview and bas ic concepts ... ... ... ... ... ... .. ... ... .. ... ... .. ... ... .. ... .. ... ... .. ... ... .. ... ... .. ... ... .. .. 4

5.1 General................................................................................................................... 4

5.2 Overview of basic information models ..................................................................... 5

5.3 Overview of the other service models...................................................................... 6

5.4 Overview of ACSI s ervices ...................................................................................... 8

5.5 Type definitions ...................................................................................................... 9

6 SERVER class model..................................................................................................... 16 6.1 SERVER class defini tion ....................................................................................... 16

6.2 Server class services ............................................................................................ 17

7 Application association model ... ... .. ... ... .. ... ... .. ... ... .. ... ... .. ... ... .. ... ... .. ... .. ... ... .. ... ... .. ... ... .. ... 18

7.1 Introduction........................................................................................................... 18

7.2 Concept of application associations ...................................................................... 18

7.3 Access control ... ... ... ... ... .. ... ... .. ... ... .. ... .. ... ... .. ... ... .. ... ... .. ... ... .. ... ... .. ... .. ... ... .. ... ... .. ... 19

7.4 TWO-PARTY-APPLICATION-ASSOCIATION (TPAA) class model......................... 20

7.5 MULTICAST-APPLICATION-ASSOCIATION (MCAA) class ................................... 24

8 LOGICAL-DEVICE class model ...................................................................................... 25

8.1 LOGICAL-DEVICE class definition ........................................................................ 25 8.2 LOGICAL-DEVICE class services ......................................................................... 26

9 LOGICAL-NODE class model ......................................................................................... 27

9.1 LOGICAL-NODE class definition ........................................................................... 27

9.2 LOGICAL-NODE class services ............................................................................ 29

10 DATA class model.......................................................................................................... 31

10.1 General................................................................................................................. 31

10.2 DATA cl ass definition............................................................................................ 31

10.3 Relation of DATA , common DATA , and compatible DATA classes........................... 41

10.4 DATA class services ............................................................................................. 41

11 DATA-SET class model .................................................................................................. 45 11.1 General................................................................................................................. 45

11.2 DATA-SET class definiti on .................................................................................... 47

11.3 DATA-SET class services ..................................................................................... 48

12 Substitution model ......................................................................................................... 52

13 SETTING-GROUP-CONTROL-BLOCK class model........................................................ 54

13.1 General................................................................................................................. 54

13.2 SGCB class definition ........................................................................................... 55

13.3 SGCB class services............................................................................................. 57

14 REPORT-CONTROL-BLOCK and LOG-CONTROL-BLOCK class models....................... 63

14.1 Overview............................................................................................................... 63

14.2 REPORT-CONTROL-BLOCK class model ............................................................. 64

14.3 LOG-CONTROL-BLOCK class model .................................................................... 85


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15 Generic substa tion event class model (GSE) .................................................................. 97 15.1 Overview............................................................................................................... 97 15.2 GOOSE-CONTROL-BLOCK (GoCB) class ............................................................ 99 15.3 Generic substation state event (GSSE) control block (GsCB) .............................. 107

16 Transmission of sampled value class model ................................................................. 115 16.1 Overview............................................................................................................. 115 16.2 Transmission of sampled values using multic ast ................................................. 116 16.3 Transmission of sampled values using unicast .................................................... 121 16.4 Sampled value format ......................................................................................... 126

17 CONTROL class model ................................................................................................ 128 17.1 Introduction......................................................................................................... 128 17.2 Control with normal security ................................................................................ 129 17.3 Control with enhanced security ........................................................................... 132 17.4 Time-activated operate ....................................................................................... 136 17.5 CONTROL cl ass s ervice definitions .................................................................... 137

18 Time and time-synchronization model .......................................................................... 143 18.1 General............................................................................................................... 143 18.2 External information ............................................................................................ 144

19 Naming conventions ..................................................................................................... 145 19.1 Class naming and class specializat ions .............................................................. 145 19.2 Referencing an instance of a class...................................................................... 146 19.3 Scope ............................................................................................................... 148

20 File transfer ................................................................................................................. 148 20.1 File transfer model .............................................................................................. 148 20.2 File services ....................................................................................................... 149

Annex A (normative) ACSI confo rmance statement ... ... ... ... ... .. ... ... .. ... ... ... .. ... ... .. ... ... .. ... ... . 153

Bibliography ....................................................................................................................... 159


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v

INTRODUCTION

This document is part of a set of specifications which details a layered substation commu-nication architecture. This architecture has been chosen to provide abstract definitions of classes and services such that the specifications are independent of specific protocol stacks,implementations, and operating systems.

The IEC 61850 series is intended to provide interoperability between a variety of substationand feeder devices. Communication between these devices is achieved by the definition of ahierarchical class model (for example, logical device, logical node, data, data set, reportcontrol, or log) and services provided by these classes (for example, get, set, report, define,delete) in parts IEC 61850-7-x.

This part of IEC 61850 defines the abstract communication service interface (ACSI) for use inthe utility substation domain that require real-time cooperation of intelligent electronicdevices. The ACSI has been defined so as to be independent of the underlyingcommunication systems. Specific communication service mappings 1 (SCSM) are specified inpart 8-x and part 9-x of this s tandard.

This part of IEC 61850 defines the abstract communication service interface in terms of

a hierarchical class model of all information that can be accessed via a communicationnetwork,

services that operate on these classes, and

parameters associated with each service.

The ACSI description technique abstracts away from all the different approaches to implementthe cooperation of the various devices.

NOTE 1 Abstraction in ACSI has two meanings. First, only those aspects of a real device (for example, a breaker)or a real function that are visible and accessible over a communication network are modelled. This abstractionleads to the hierarchical class models and their behaviour defined in IEC 61850-7-2, IEC 61850-7-3, andIEC 61850-7-4. Second, the ACSI abstracts from the aspect of concrete definitions on how the devices exchangeinformation; only a conceptual cooperation is defined. The concrete information exchange is defined in the SCSMs.

NOTE 2 This part of IEC 61850 does not provide comprehensive tutorial material. It is recommended thatIEC 61850-5 and IEC 61850-7-1 be read first in conjunction with IEC 61850-7-2 and IEC 61850-7-3.

NOTE 3 Examples use names of classes (e.g. XCBR for a class of a logical node) defined in IEC 61850-7-4 andIEC 61850-7-3. The normative names are defined in IEC 61850-7-4 and IEC 61850-7-3 only.

1 The ACSI is independent of the specific mapping. Mappings to standard application layers or middle waretechnologies are possible.


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vi

NOTES


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www.stand ards. com.au S tan dar ds Aus trali a

1

STANDARDS AUSTRALIA

Australian Standard

Communication networks and systems in substationsPart 7.2: Basic communication structure for substation and feeder

equipmentAbstract communication service interface (ACSI)

1 Scope

This part of IEC 61850 appli es to the ACSI communication in substations and feeder applications. The ACSI provides the following abstract interfaces.

a) Abstract interface describing communications between a client and a remote server for

real-time data access and retrieval, device control,

event reporting and logging,

publisher/subscriber,

self-description of devices (device data dictionary),

data typing and discovery of data types, and

file transfer.

b) Abstract interface for fast and reliable system-wide event distribution between anapplication in one device and many remote applications in different devices(publisher/subscriber) and for transmission of sampled measured values

(publisher/subscriber).

This part of IEC 61850 may also be applied to describe device models and functions for additional activities, such as:

substation to substation information exchange,

substation to control centre information exchange,

power plant to control centre information exchange,

information exchange for distributed generation, or information exchange for metering.

2 Normative references

The following referenced documents are indispensable for the application of this document.For dated references, only the edition cited applies. For undated references, the latest editionof the referenced document (including any amendments) applies.

References to international standards that are struck through in this clause are replaced byreferences to Australian or Australian/New Zealand Standards that are listed immediatelythereafter and identified by shading. Any Australian or Australian/New Zealand Standard thatis identical to the International Standard it replaces is identified as such.

IEC 61850-2, Communication networks and systems in substations Part 2: Glossary

AS 61850.2, Communication networks and systems in substations, Part 2: Glossary (identicalto IEC 61850-2)


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